CN113202130A - High-rise-network-format offshore wind power foundation anti-scouring system and method - Google Patents
High-rise-network-format offshore wind power foundation anti-scouring system and method Download PDFInfo
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- CN113202130A CN113202130A CN202110627442.9A CN202110627442A CN113202130A CN 113202130 A CN113202130 A CN 113202130A CN 202110627442 A CN202110627442 A CN 202110627442A CN 113202130 A CN113202130 A CN 113202130A
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- grid
- offshore wind
- wind power
- rise
- power foundation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
- E02B3/26—Fenders
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/52—Submerged foundations, i.e. submerged in open water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention provides a high-rise grid type offshore wind power foundation anti-scouring system and a method thereof, wherein the system comprises a plurality of grids; each grid is vertically fixed between two upright posts; the plurality of grids are connected end to end and form a grid structure around the offshore wind power foundation; the grating is rectangular; two reinforcing connecting ribs are arranged on the diagonal line of each grid. The invention reduces the flow velocity of water flow through the grating, blocks the flow of silt close to the bottom layer of the seabed, and achieves the purpose of preventing the scour of the foundation; the connecting ribs are reinforced through the diagonal lines of the grating, so that the rigidity of the connection of the grating system is increased, and the system is prevented from being collapsed by water flow; through the grid structure, the strength of grid choked flow is further enhanced, and the omnibearing foundation anti-scouring effect can be provided under the condition of variable flow direction of ocean current.
Description
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a high-rise grid type offshore wind power foundation anti-scouring system and method.
Background
The periphery of the offshore wind power foundation is easily influenced by seabed water flow to form a scouring pit, so that the burial depth of the foundation is reduced, and the safe and stable operation of a wind turbine is influenced. At present, most of traditional offshore wind power foundation anti-scouring measures are to lay a protective layer in a foundation range to improve the anti-scouring capability, such as laying stones, concrete blocks, sand bags, concrete hinge rows and the like in a protective area; or the purpose of scour prevention can be achieved by reducing the flow velocity of water in the protection area, such as the protection of a front guide plate in the foundation. The traditional offshore wind power foundation anti-scouring measures generally have the problems of high construction cost and general protection effect.
Disclosure of Invention
In order to solve the technical problems, the invention provides an anti-scouring system and an anti-scouring method for a high-rise grid type offshore wind power foundation, which can reduce the flow velocity of water in a protection area, block the flow of silt and achieve the aim of preventing scouring of the foundation.
In order to achieve the purpose, the invention adopts the following technical scheme:
an offshore wind power foundation anti-scouring system in a high-rise grid format comprises a plurality of grids;
each grid is vertically fixed between two upright posts;
the plurality of grids are connected end to end and form a grid structure around the offshore wind power foundation;
the grating is rectangular; two reinforcing connecting ribs are arranged on the diagonal line of each grid.
The invention further improves the following steps: the grid is made of a corrosion-resistant metal material or a fiber material; the porosity of the grid is 10% -50%.
The invention further improves the following steps: the grid bottom edge is disposed proximate to the seabed surface.
The invention further improves the following steps: the upright posts are cylinders made of corrosion-resistant metal; the bottom of the upright post is buried in the seabed and fixed.
The invention further improves the following steps: the reinforcing connecting ribs are made of corrosion-resistant metal.
The invention further improves the following steps: the cross section of the grid structure is rectangular or regular polygon.
The invention further improves the following steps: an offshore wind power foundation is arranged in the center of the grid structure.
The invention further improves the following steps: a multi-layer grid structure is arranged around the offshore wind power foundation.
The invention further improves the following steps: the cross-sectional shapes of the multi-layer lattice structures are the same or different.
An anti-scouring method for a high-rise-network-format offshore wind turbine foundation comprises the following steps:
the seawater flowing to the offshore wind power foundation from any direction flows through the grating, silt in the seawater is blocked by the grating, the collision flow velocity of the seawater and the grating is reduced, and the scouring of the silt flowing to the offshore wind power foundation is reduced.
Compared with the prior art, the invention has the following advantages:
the invention reduces the flow velocity of water flow through the grating, blocks the flow of silt close to the bottom layer of the seabed, and can achieve the aim of preventing the scour of the foundation.
The connecting ribs are reinforced through the diagonal lines of the grating, so that the rigidity of the connection of the grating system is increased, and the grating system is prevented from being collapsed by water flow.
The invention further enhances the flow resistance strength of the grating by the grid structure, and can provide an omnibearing basic anti-scouring effect in a sea current environment with variable flow directions.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a square structure of an offshore wind power foundation anti-scouring system in a high-rise grid format.
Fig. 2 is a schematic structural diagram of a regular hexagon of the offshore wind power foundation anti-scouring system in the high-rise grid format.
1. A grid; 2. a column; 3. reinforcing the connecting ribs; 4. offshore wind power foundation.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention clear and understood, the invention is further explained below by combining with the attached drawings.
Example 1
Referring to fig. 1, the invention provides an anti-scouring system for an offshore wind power foundation in a high-rise grid format, which comprises a grid 1, a stand column 2, a reinforcing connecting rib 3 and an offshore wind power foundation 4;
a plurality of grids 1 are arranged around an offshore wind power foundation 4, each grid 1 is vertically fixed by two stand columns 2, and two reinforcing connecting ribs 3 are arranged on the diagonal portion of each grid 1.
The grid 1 is a rectangular net and is made of corrosion-resistant metal materials or high-strength fiber materials, and the porosity of the grid is 10% -50%.
The bottom edge of the grating 1 is proximate to the surface of the seabed.
The upright post 2 is a corrosion-resistant metal cylinder and is buried in the seabed for fixation.
The reinforced connecting ribs 3 are corrosion-resistant metal connecting pieces.
The plurality of grids are connected end to end and form a grid structure around the offshore wind power foundation, and the cross section of the grid structure can be square.
The wind power foundation 4 is located in the center of the grid structure.
The grid 1, the upright column 2 and the reinforcing connecting ribs 3 are designed according to parameters such as the circumferential direction, the height and the distance between the grid 1, the upright column 2 and the wind power foundation 4, the flow speed of the seabed water, the space environment and the like.
Example 2
Referring to fig. 2, the structure of this embodiment 2 is the same as that of embodiment 1, but the cross-section of the mesh is different, and the cross-section of the mesh of this embodiment is a regular hexagon. The reason for this embodiment is that the protective range of the regular hexagon is larger than that of the square.
Example 3
On the basis of embodiment 1 or 2, according to engineering actual need, can set up multilayer grid structure around offshore wind power basis 4 to strengthen the protective effect. The cross section of multilayer grid structure is the same or different, and is different, can change the flow direction when sea water and silt pass through different layer grid 1, further reduces the velocity of flow of silt, improves the scour prevention effect.
Example 4
The invention also provides an anti-scouring method for the offshore wind power foundation in the high-rise network format, which is based on the anti-scouring system for the offshore wind power foundation in the high-rise network format in the embodiment 1, 2 or 3 and comprises the following steps:
when the seawater flowing to the offshore wind power foundation 4 from any direction flows through the grating 1, silt in the seawater is blocked by the holes of the grating 1, the collision flow velocity of the seawater and the grating 1 is reduced, and the scouring of the seawater on the offshore wind power foundation is reduced.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. An offshore wind power foundation anti-scouring system in a high-rise grid format is characterized by comprising a plurality of grids (1);
each grid (1) is vertically fixed between two upright posts (2);
the plurality of grids (1) are connected end to end and form a grid structure around the offshore wind power foundation (4);
the grating (1) is rectangular; two reinforcing connecting ribs (3) are arranged on the diagonal of each grid (1).
2. A high-rise-grid-format offshore wind power foundation anti-scour system according to claim 1, wherein the grating (1) is made of a corrosion-resistant metal material or a fiber material; the porosity of the grid (1) is 10-50%.
3. A high-rise-grid-format offshore wind power foundation anti-scour system according to claim 2, wherein the bottom edge of the grating (1) is arranged proximate to the seabed surface.
4. A high-rise-grid-format offshore wind power foundation anti-scouring system as claimed in claim 1, wherein the vertical column (2) is a cylinder made of corrosion-resistant metal; the bottom of the upright post (2) is buried into the seabed and fixed.
5. A high-rise-grid-format offshore wind power foundation anti-scour system according to claim 1, wherein the reinforcing tie bars (3) are made of corrosion-resistant metal.
6. The offshore wind power foundation anti-scouring system in the high-rise grid format according to claim 1, wherein the cross section of the grid structure is rectangular or regular polygonal.
7. A high-rise-grid-format offshore wind power foundation anti-scour system according to claim 1, wherein the offshore wind power foundation (4) is arranged centrally in the grid structure.
8. A high-rise-grid-format offshore wind power foundation anti-scouring system as claimed in claim 1, characterized in that a multi-layer grid structure is arranged around the offshore wind power foundation (4).
9. The offshore wind power foundation anti-scouring system in the high-rise grid format according to claim 8, wherein the cross-sectional shapes of the multi-layer grid structure are the same or different.
10. An anti-scouring method for a high-rise-network-format offshore wind turbine foundation, which is characterized in that the anti-scouring system for the high-rise-network-format offshore wind turbine foundation is based on any one of claims 1 to 9, and comprises the following steps:
the seawater flowing to the offshore wind power foundation from any direction flows through the grating (1), silt in the seawater is blocked by the grating (1), the collision flow velocity of the seawater and the grating (1) is reduced, and the scouring of the silt flowing to the offshore wind power foundation is reduced.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110627442.9A CN113202130A (en) | 2021-06-04 | 2021-06-04 | High-rise-network-format offshore wind power foundation anti-scouring system and method |
| PCT/CN2021/141148 WO2022252585A1 (en) | 2021-06-04 | 2021-12-24 | High-standing grid-format offshore wind power foundation anti-scouring system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110627442.9A CN113202130A (en) | 2021-06-04 | 2021-06-04 | High-rise-network-format offshore wind power foundation anti-scouring system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113202130A true CN113202130A (en) | 2021-08-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110627442.9A Pending CN113202130A (en) | 2021-06-04 | 2021-06-04 | High-rise-network-format offshore wind power foundation anti-scouring system and method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113202130A (en) |
| WO (1) | WO2022252585A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252585A1 (en) * | 2021-06-04 | 2022-12-08 | 中国华能集团清洁能源技术研究院有限公司 | High-standing grid-format offshore wind power foundation anti-scouring system and method |
| CN115492155A (en) * | 2022-09-26 | 2022-12-20 | 广东华蕴海上风电科技有限公司 | Construction method of sand gathering device for preventing scouring of offshore wind power foundation |
| CN116517036A (en) * | 2023-03-28 | 2023-08-01 | 中国铁建港航局集团有限公司 | Construction method of scour prevention solidification structure around offshore wind power pile |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115613583B (en) * | 2022-12-15 | 2023-03-28 | 中国海洋大学 | Offshore area rock foundation pit and construction method |
| CN117364852B (en) * | 2023-12-06 | 2024-02-27 | 沧州惠邦机电产品制造有限责任公司 | Offshore wind power scour prevention device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258611A (en) * | 2019-06-28 | 2019-09-20 | 重庆大学 | A kind of offshore wind farm and aquafarm integral structure system |
| CN111493006B (en) * | 2020-04-22 | 2021-12-28 | 浙江大学 | Device for preventing basic scour by utilizing fishing net in offshore wind farm |
| CN112681233B (en) * | 2020-12-28 | 2022-02-15 | 湖南工程学院 | Oscillation type anti-scouring device for offshore wind power pile foundation |
| CN113202130A (en) * | 2021-06-04 | 2021-08-03 | 中国华能集团清洁能源技术研究院有限公司 | High-rise-network-format offshore wind power foundation anti-scouring system and method |
-
2021
- 2021-06-04 CN CN202110627442.9A patent/CN113202130A/en active Pending
- 2021-12-24 WO PCT/CN2021/141148 patent/WO2022252585A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022252585A1 (en) * | 2021-06-04 | 2022-12-08 | 中国华能集团清洁能源技术研究院有限公司 | High-standing grid-format offshore wind power foundation anti-scouring system and method |
| CN115492155A (en) * | 2022-09-26 | 2022-12-20 | 广东华蕴海上风电科技有限公司 | Construction method of sand gathering device for preventing scouring of offshore wind power foundation |
| CN115492155B (en) * | 2022-09-26 | 2023-08-22 | 广东华蕴海上风电科技有限公司 | Construction method of sand gathering device for scour prevention of offshore wind power foundation |
| CN116517036A (en) * | 2023-03-28 | 2023-08-01 | 中国铁建港航局集团有限公司 | Construction method of scour prevention solidification structure around offshore wind power pile |
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| Publication number | Publication date |
|---|---|
| WO2022252585A1 (en) | 2022-12-08 |
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